Income Tax Calculator UK

Calculate your annual take-home pay instantly. Includes tax bands, National Insurance, student loans, and pension contributions for 2025/26.

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UK Income Tax Bands 2025/26

Complete breakdown of tax bands and rates

Tax Band Income Range Tax Rate
Personal Allowance £0 – £12,570 0%
Basic Rate £12,571 – £50,270 20%
Higher Rate £50,271 – £125,140 40%
Additional Rate £125,141+ 45%

Note: Personal Allowance tapers by £1 for every £2 earned over £100,000. This is reflected in our calculator.

How Income Tax is Calculated

Step-by-step breakdown of the calculation

1

Apply Personal Allowance

Deduct £12,570 from gross salary. This is the amount you can earn tax-free.

2

Calculate Taxable Income

What remains is your taxable income. Tax is applied to this amount at the relevant bands.

3

Apply Tax Bands

Tax is calculated progressively. £12,571–£50,270 at 20%, £50,271–£125,140 at 40%, and above at 45%.

4

Add National Insurance

Employees pay 8% on £12,570–£50,270 and 2% on earnings above £50,270.

5

Deduct Other Liabilities

Subtract student loan repayment, pension contributions, and any other deductions.

National Insurance Contributions Explained

Understanding your NI contributions

What is NI?

National Insurance is a tax paid by employees and employers. It funds the state pension, unemployment benefits, and certain other welfare benefits.

Employees pay from their salary; employers pay separately on top of wages.

2025/26 Rates

  • £12,570 – £50,270: 8%
  • £50,271+: 2%
  • Lower threshold: £12,570

Did You Know?

NI contributions count towards your state pension. The more you pay, the higher your state pension entitlement will be.

Understanding Your Personal Allowance

How the PA works and the high earner taper

Standard PA

The standard Personal Allowance for 2025/26 is £12,570. This is the amount of income everyone can earn tax-free.

Example: If you earn £35,000, only £22,430 is taxable (£35,000 - £12,570).

High Earner Taper

For every £2 you earn above £100,000, your Personal Allowance is reduced by £1.

At £125,140: Your PA is completely removed. Higher earners pay tax on all income above this.

Student Loan Repayment Thresholds

All loan plans and their repayment rates

Loan Plan Threshold Repayment Rate
Plan 1 (Pre-2006) £24,990 9%
Plan 2 (2006-2012) £27,295 9%
Plan 4 (England, 2012+) £31,395 9%
Plan 5 (Scotland) £25,000 9%
Postgraduate £21,000 6%

Repayment Calculation

You repay 9% (or 6% for postgraduate) of anything you earn above your threshold. It's only owed if you're employed and earning above the threshold.

Repayment = (Salary - Threshold) × 9%

Write-Off Date

  • Plan 1/2/4: 30 years after graduation
  • Plan 5: 35 years after graduation
  • Postgraduate: 10 years after graduation

Tips to Reduce Your Tax Bill Legally

Legitimate ways to minimize your tax liability

Maximize Pension Contributions

Pension contributions are deducted from your gross salary before tax, giving you immediate tax relief. Contributing more reduces your taxable income.

Use Your ISA Allowance

Individual Savings Accounts (ISAs) let you save up to £20,000 per year tax-free. All interest and dividends are tax-exempt.

Claim All Allowances

If you're self-employed, claim all business expenses. Ensure you're receiving all entitled allowances (Marriage Allowance, etc.).

Gift Aid on Donations

When donating to charity, use Gift Aid. The charity recovers tax, and if you're a higher earner, you may claim additional relief.

Student Loan Repayment

If earning near your student loan threshold, consider whether extra income will significantly increase repayments.

Self-Assessment Planning

Work with an accountant or tax advisor to optimize your tax position, especially if you have multiple income sources.

Frequently Asked Questions

Common questions about UK income tax

If you're employed and your only income is from your salary, you usually don't need to file. However, you must file if you're self-employed, have income from other sources, or your tax isn't covered by PAYE.
Yes. Contact HMRC if your tax code is incorrect. A wrong code can result in overpaying or underpaying tax. HMRC will adjust it and may refund overpayments.
Marriage Allowance lets you transfer unused Personal Allowance to your spouse if they earn less than you. This can save around £252 per year in tax. You can apply on the HMRC website.
For Plan 1, 2, and 4: 30 years from graduation (Plan 5: 35 years in Scotland, Postgraduate: 10 years). If the loan isn't repaid by then, it's written off. You only pay if earning above the threshold.
Yes. Workplace pension contributions get tax relief automatically. For personal pensions, you claim relief via Self-Assessment or your employer can adjust your code.

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